The Superpave PG asphalt binder system has received widespread acceptance. However, PG system test methods do not alone provide all the information need to most effectively perform these tests. The Asphalt Institute is pleased to offer the 3rd Edition of MS-25, Asphalt Binder Testing, written as a single resource to supplement PG test methods and standardize best practices to interpret and follow AASHTO and ASTM standards.